Replaces

1996-1999 Chevy C1500 Truck Serpentine Belt Tensioner with Pulley for V8 5.0L (8th Vin Digit M)

This part replaces:

  • OE # 10239670 12456152 89017309
  • DORMAN 419-100

  • New

This replacement serpentine belt tensioner is just what you need to get your vehicle in good working order again! If you are hearing a whirring noise from the front of your engine or if your belt often screeches you may be in need of a new belt tensioner. This part commonly wears out between 60,000 and 70,000 Miles. If it fails suddenly it can leave you stranded.

Specifications:

  • Direct replacement
  • Brand new not rebuilt
  • Replaces dealer part numbers: 10239670, 12456152, 89017309

To ensure fit please match the 8th digit of your VIN number to the VIN code in the title. Your vehicles VIN number can be found in the lower left corner of the windshield or on your registration.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

  1. Step 1: Prep (0:59 in the video)
    • Locate your belt routing diagram, usually located near the radiator. Disconnect the battery.
  2. Step 2: Remove belt tensioner (1:13 in the video)
    • Use your 3/8ths drive ratchet handle to push down and release the tension from the belt.
    • Remove the belt.
  3. Step 3: Remove idler pulley (1:43 in the video)
    • Use a 13mm wrench and a little pressure.
  4. Step 4: Transfer spacer (1:54 in the video)
    • Use a small screwdriver to remove the locking washer and access the spacer.
    • Transfer the spacer onto the new idler pulley and twist the lock washer on to secure it in place.
  5. Step 5: Put idler pulley back on. (3:14 in the video)
    • Use your 13 mm wrench to tighten it up to 20-25ft lbs
  6. Step 6: Remove serpentine belt tensioner (3:33 in the video)
    • Use your 15 mm wrench. Remove and replace with the new tensioner.
    • Ensure that you tighten it up with your wrench.
  7. Step 7: Inspect and replace serpentine belt (4:22 in the video)
    • Inspect the belt for breaks, cracks and imperfections.
    • Use the diagram and your wrench on the tensioner to replace the serpentine belt.
  8. Step 8: Finish up (5:20 in the video)
    • Inspect all the pulleys and reconnect the battery.

Tools needed for replacement:

    Ratchets & Related

  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Wrenches - Metric

  • 13mm Wrench
  • 15mm Wrench

How-to Video:

(05:49 min)

Tools List:

    Ratchets & Related

  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Wrenches - Metric

  • 13mm Wrench
  • 15mm Wrench



This part replaces:

  • OE # 10239670 12456152 89017309
  • DORMAN 419-100

Vehicle Fit

  • 1999-2000 Cadillac Escalade Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-2001 Chevy Astro Serpentine Belt Tensioner with Pulley for V6 V6 4.3L (8th Vin Digit W)
  • 2002-2005 Chevy Astro Serpentine Belt Tensioner with Pulley for V6 V6 4.3L (8th Vin Digit X)
  • 1996-2002 Chevy Blazer S10 Serpentine Belt Tensioner with Pulley for V6 V6 4.3L (8th Vin Digit W)
  • 2003-2005 Chevy Blazer S10 Serpentine Belt Tensioner with Pulley for V6 V6 4.3L (8th Vin Digit X)
  • 1996-1999 Chevy C1500 Truck Serpentine Belt Tensioner with Pulley for V6 4.3L
  • 1996-1999 Chevy C1500 Truck Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-1999 Chevy C1500 Truck Serpentine Belt Tensioner with Pulley for V8 5.0L (8th Vin Digit M)
  • 1996-2000 Chevy C2500 Truck Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit J)
  • 1996-2000 Chevy C2500 Truck Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-2000 Chevy C2500 Truck Serpentine Belt Tensioner with Pulley for V8 5.0L (8th Vin Digit M)
  • 1996-1997 Chevy C3500 Truck Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit K)
  • 1996-2000 Chevy C3500 Truck Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-2000 Chevy C3500 Truck Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit J)
  • 1996-2002 Chevy Express 1500 Van Serpentine Belt Tensioner with Pulley for V8 5.0L (8th Vin Digit M)
  • 1996-2002 Chevy Express 1500 Van Serpentine Belt Tensioner with Pulley (8th Vin Digit K) for V8 5.7L
  • 1996-2013 Chevy Express 1500 Van Serpentine Belt Tensioner with Pulley for V6 4.3L
  • 1996-2002 Chevy Express 1500 Van Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-2002 Chevy Express 2500 Van Serpentine Belt Tensioner with Pulley for V8 5.0L (8th Vin Digit M)
  • 1996-2002 Chevy Express 2500 Van Serpentine Belt Tensioner with Pulley (8th Vin Digit K) for V8 5.7L
  • 1996-2002 Chevy Express 2500 Van Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-2000 Chevy Express 3500 Van Serpentine Belt Tensioner with Pulley (8th Vin Digit J) for V8 7.4L
  • 1996-2002 Chevy Express 3500 Van Serpentine Belt Tensioner with Pulley (8th Vin Digit K) for V8 5.7L
  • 1996-2000 Chevy Express 3500 Van Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit N)
  • 1996-2002 Chevy Express 3500 Van Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-1999 Chevy K1500 Truck Serpentine Belt Tensioner with Pulley for V6 4.3L
  • 1996-1999 Chevy K1500 Truck Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-1999 Chevy K1500 Truck Serpentine Belt Tensioner with Pulley for V8 5.0L (8th Vin Digit M)
  • 1996-2000 Chevy K2500 Truck Serpentine Belt Tensioner with Pulley for V8 5.0L (8th Vin Digit M)
  • 1996-2000 Chevy K2500 Truck Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-2000 Chevy K2500 Truck Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit J)
  • 1996-2000 Chevy K3500 Truck Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit J)
  • 1996-2000 Chevy K3500 Truck Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-1997 Chevy K3500 Truck Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit K)
  • 1996-2004 Chevy S10 Pickup Serpentine Belt Tensioner with Pulley for V6 V6 4.3L
  • 1999-2013 Chevy Silverado 1500 Serpentine Belt Tensioner with Pulley for V6 V6 4.3L
  • 1996-1999 Chevy Suburban C1500 Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-1999 Chevy Suburban C2500 Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-1999 Chevy Suburban C2500 Serpentine Belt Tensioner with Pulley (8th Vin Digit J) for V8 7.4L
  • 1996-1999 Chevy Suburban K1500 Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-1999 Chevy Suburban K2500 Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-1999 Chevy Suburban K2500 Serpentine Belt Tensioner with Pulley (8th Vin Digit J) for V8 7.4L
  • 1996-2000 Chevy Tahoe Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-1999 Chevy Van - P Series Forward Control Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-1999 Chevy Van - P Series Forward Control Serpentine Belt Tensioner with Pulley for V6 4.3L (8th Vin Digit W)
  • 1996-1999 Chevy Van - P Series Forward Control Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit B)
  • 1996-1999 Chevy Van - P Series Forward Control Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit N)
  • 1996-1999 Chevy Van - P Series Forward Control Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit J)
  • 1996-1999 GMC C1500 Truck Serpentine Belt Tensioner with Pulley for V6 4.3L
  • 1996-1999 GMC C1500 Truck Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-1999 GMC C1500 Truck Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit J)
  • 1996-1999 GMC C1500 Truck Serpentine Belt Tensioner with Pulley for V8 5.0L (8th Vin Digit M)
  • 1996-2000 GMC C2500 Truck Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-2000 GMC C2500 Truck Serpentine Belt Tensioner with Pulley for V8 5.0L (8th Vin Digit M)
  • 1996-2000 GMC C2500 Truck Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit J)
  • 1996-2000 GMC C3500 Truck Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-2000 GMC C3500 Truck Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit J)
  • 1996-2001 GMC Jimmy S-15 Serpentine Belt Tensioner with Pulley for V6 V6 4.3L (8th Vin Digit W)
  • 1996-1999 GMC K1500 Truck Serpentine Belt Tensioner with Pulley for V6 4.3L
  • 1996-1999 GMC K1500 Truck Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-1999 GMC K1500 Truck Serpentine Belt Tensioner with Pulley for V8 5.0L (8th Vin Digit M)
  • 1996-2000 GMC K2500 Truck Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-2000 GMC K2500 Truck Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit J)
  • 1996-2000 GMC K2500 Truck Serpentine Belt Tensioner with Pulley for V8 5.0L (8th Vin Digit M)
  • 1996-2000 GMC K3500 Truck Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-2000 GMC K3500 Truck Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit J)
  • 1996-2004 GMC S-15 Sonoma Serpentine Belt Tensioner with Pulley for V6 V6 4.3L
  • 1996-2001 GMC Safari Serpentine Belt Tensioner with Pulley for V6 V6 4.3L (8th Vin Digit W)
  • 2002-2005 GMC Safari Serpentine Belt Tensioner with Pulley for V6 V6 4.3L (8th Vin Digit X)
  • 1996-2002 GMC Savana 1500 Van Serpentine Belt Tensioner with Pulley for V8 5.0L (8th Vin Digit M)
  • 1996-2002 GMC Savana 1500 Van Serpentine Belt Tensioner with Pulley (8th Vin Digit K) for V8 5.7L
  • 1996-2013 GMC Savana 1500 Van Serpentine Belt Tensioner with Pulley for V6 4.3L
  • 1996-2002 GMC Savana 1500 Van Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-2005 GMC Savana 2500 Van Serpentine Belt Tensioner with Pulley for V6 4.3L
  • 1996-2002 GMC Savana 2500 Van Serpentine Belt Tensioner with Pulley for V8 5.0L (8th Vin Digit M)
  • 1996-2002 GMC Savana 2500 Van Serpentine Belt Tensioner with Pulley (8th Vin Digit K) for V8 5.7L
  • 1996-2002 GMC Savana 2500 Van Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-2000 GMC Savana 3500 Van Serpentine Belt Tensioner with Pulley (8th Vin Digit J) for V8 7.4L
  • 1996-2002 GMC Savana 3500 Van Serpentine Belt Tensioner with Pulley (8th Vin Digit K) for V8 5.7L
  • 1996-2002 GMC Savana 3500 Van Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-2000 GMC Savana 3500 Van Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit N)
  • 1999-2013 GMC Sierra 1500 Serpentine Belt Tensioner with Pulley for V6 V6 4.3L
  • 1996-1999 GMC Suburban Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-1999 GMC Suburban Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit J)
  • 1996 GMC Van Serpentine Belt Tensioner with Pulley for V8 5.0L (8th Vin Digit M)
  • 1996 GMC Van Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit J)
  • 1996 GMC Van Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit K)
  • 1996 GMC Van Serpentine Belt Tensioner with Pulley for V6 4.3L
  • 1996 GMC Van Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996 GMC Van Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit N)
  • 1996-1999 GMC Van - P Series Forward Control Serpentine Belt Tensioner with Pulley for V6 4.3L (8th Vin Digit W)
  • 1996-1999 GMC Van - P Series Forward Control Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit B)
  • 1996-1999 GMC Van - P Series Forward Control Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1996-1999 GMC Van - P Series Forward Control Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit J)
  • 1996-1999 GMC Van - P Series Forward Control Serpentine Belt Tensioner with Pulley for V8 7.4L (8th Vin Digit N)
  • 1996-2000 GMC Yukon Serpentine Belt Tensioner with Pulley for V8 5.7L (8th Vin Digit R)
  • 1997-2000 Isuzu Hombre Serpentine Belt Tensioner with Pulley for V6 V6 4.3L (8th Vin Digit X)
  • 1996-2001 Olds Bravada Serpentine Belt Tensioner with Pulley for V6 V6 4.3L (8th Vin Digit W)
$41.45
Part #: 1AEBT00001

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"Thanks for the fast reliable service. Great price, and the headlights were as good as oem or better!!! Keep up the good work..."
- Dwuan M.
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